18435084185 has 32 divisors (see below), whose sum is σ = 26154565632. Its totient is φ = 12206888640.

The previous prime is 18435084149. The next prime is 18435084193. The reversal of 18435084185 is 58148053481.

It is not a de Polignac number, because 18435084185 - 2⁸ = 18435083929 is a prime.

It is a super-2 number, since 2×18435084185² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 488504 + ... + 524886.

It is an arithmetic number, because the mean of its divisors is an integer number (817330176).

Almost surely, 2^18435084185 is an apocalyptic number.

It is an amenable number.

18435084185 is a deficient number, since it is larger than the sum of its proper divisors (7719481447).

18435084185 is a wasteful number, since it uses less digits than its factorization.

18435084185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36893.

The product of its (nonzero) digits is 614400, while the sum is 47.

The spelling of 18435084185 in words is "eighteen billion, four hundred thirty-five million, eighty-four thousand, one hundred eighty-five".